Official
Published by the model maker, repository owner, framework maintainer, or another first-party authority. We still attribute the claim instead of presenting it as our test result.
Community
A traceable third-party report. Configuration-specific results are not generalized into universal hardware requirements.
Estimated
A calculation based on visible assumptions and a reproducible formula. Estimates are not measurements.
Unknown
Used when the available evidence does not support a reliable answer. Unknown is preferable to invented precision.